Tuning apparatus

Details Tuning apparatus Tuning apparatus

1978-12-29

1980-01-22

Swisher, S. Clement

Signals and indicators

Indicators

Frequency tuner type

74 107, 74 8922, 116242, 116261, 325455, 334 86, G12B 1104

Patent

active

041844475

ABSTRACT:
Tuning apparatus including a scale provided with indicia corresponding to different broadcast frequencies to which the tuning apparatus is tunable and a pointer movable across the scale to indicate the particular broadcast frequency to which the tuning apparatus is tuned. The pointer is supported by a movable support which is guided by a guide shaft. A plurality of markers are slidably guided along at least one guide rail and are individually settable to desired locations adjacent the scale, thereby representing particular broadcast frequencies to which the tuning apparatus is tunable. A key removably mounted on the guide shaft is bi-directionally driven therealong by the movable support, the key being selectively operative to engage a desired one of the markers to move the engaged marker along the guide rail as the support is moved, whereby the marker is set to a desired position by reason of its engagement with the key.

REFERENCES:
patent: 3416486 (1968-12-01), Mongesku
patent: 3431884 (1969-03-01), Marantz
patent: 3962641 (1976-06-01), Suwa
patent: 4041890 (1977-08-01), Wilder

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